| 主权项 |
1. A large-scale cultivation system for growing algae, comprising
one or more photobioreactor units, each of which comprising
a container for containing an algae suspension, wherein the container has a circular opening, is cylindrical along a vertical central axis, and has a conical bottom closing the cylinder;a removable clear circular top with a top side and a bottom side;an array of diffused acrylic rods that are perpendicularly mounted to the bottom side of the removable clear circular top, wherein each of the array of diffused acrylic rods is about 5 to 6 inches apart;clear support bars across the top side of the removable clear circular top to support the array of diffused acrylic rods; andan algae-cycling system comprising
a compressor to provide pressure air into a main plastic pipe;the main plastic pipe, which connects to the removable clear circular top, is then housed along the vertical center axis of the container;two or more branch plastic pipes connecting perpendicularly to the main plastic pipe and horizontally housed in the container, wherein the two or more branch plastic pipes are seated generally at the edge of the conical bottom of the container; andall of the two or more branch plastic pipes each have a top side and a bottom side, wherein on the bottom side of the two or more branch plastic pipes are a plurality of holes for pressure air to enter into the container and vertically drive the circulation of the algae suspension within the entire container due to the shape of the conical bottom one or more double parabolic trough mirror systems used to collect sunlight, and each comprising
a primary parabolic trough with a vertex line and a reflective side that faces its parabolic focal line, wherein the reflective side of the primary parabolic trough is facing primarily upward towards the sun;a secondary parabolic trough with a reflective side that also faces the parabolic focal line of the primary parabolic trough, wherein, in relation to the primary parabolic trough, the secondary parabolic trough is held in place farther than the focal line of the primary parabolic trough by mounting racks such that all sun rays hitting the primary parabolic trough would be reflected onto the secondary parabolic trough;a slit at the vertex line of the primary parabolic trough that is less than the dimensions of the secondary parabolic trough;an optic filter that is adjacent right below the secondary parabolic trough and only allows wavelengths between 400 nm to 750 nm to be passed through;a series of fiber optic cables sit below the slit of the primary parabolic trough, wherein each of the series of fiber optic cables is attached to each of the array of diffused acrylic rods of the photobioreactor unit respectively with a one-to-one ratio, such that one double parabolic trough system is connected to at least one photobioreactor;a series of lenses that sit on top of the series of fiber optic cables respectively in a one-to-one ratio, in a holder and convert a focused light into parallel light in order to reduce light loss;a base that holds the entire double parabolic trough mirror system; anda sunlight tracking system and a motor controlled by the sunlight tracking system that follows the sun's movement and steers the double parabolic trough mirror system in the direction of the sun, such that sun rays hit the primary parabolic trough substantially perpendicularly. |
